#ifndef _PLY_H
#define _PLY_H

#include <stdio.h>

struct node;
struct symtab;
struct ir;

struct prog {
	const char *probe;
	struct node *ast;

	struct symtab *locals;
	struct symtab *globals;

	/* symtab_t *locals; */
	/* symtab_t *globals; */

	struct provider *provider;
	void *provider_data;

	struct ir *ir;
};

struct ctx {
	struct prog **progs;

	struct symtab *globals;
};


struct func;

struct provider {
	const char *name;

	int (*probe)(struct prog *);
	int (*sym_alloc)(struct prog *, struct node *);
	/* int (*resolve)(struct prog *, struct node *); */
	/* int (*rewrite_node)(struct prog *, struct node *); */
	int (*ir_pre)(struct prog *);
	int (*ir_post)(struct prog *);
};

void provider_register(struct provider *p);

/* utils */
void ast_fprint(FILE *fp, struct node *root);

#include "printxf.h"

#define _d(fmt, ...) fprintxf(NULL, stderr, fmt, ##__VA_ARGS__)
#define _i(fmt, ...) fprintxf(NULL, stderr, fmt, ##__VA_ARGS__)
#define _w(fmt, ...) fprintxf(NULL, stderr, fmt, ##__VA_ARGS__)
#define _e(fmt, ...) fprintxf(NULL, stderr, fmt, ##__VA_ARGS__)

#endif	/* _PLY_H */